Related Rule
South Africa
Practice Relating to Rule 57. Ruses of War
South Africa’s LOAC Manual (1996) states:
Certain ruses of war, intended to mislead an adversary or to induce it to act recklessly, do not contravene international law. Examples given in [the 1977 Additional Protocol I] are camouflage, decoy, mock operations and disinformation. Others are surprise, ambush, psychological operations and deception by communication or movement. 
South Africa, Presentation on the South African Approach to International Humanitarian Law, Appendix A, Chapter 4: International Humanitarian Law (The Law of Armed Conflict), National Defence Force, 1996, § 34(a). This manual is also included in Chapter 4 of the
South Africa’s Revised Civic Education Manual (2004) states:
Ruses of War – Permitted Deception. (Article 24, IV Hague Convention; Article 37(2), Protocol 1 of the Geneva Conventions.) Certain ruses of war, intended to mislead an adversary or to induce it to act recklessly, do not contravene international law. Examples given in Protocol 1 are camouflage, decoy, mock operations and disinformation. Others are surprise, ambush, psychological operations and deception by communication or movement. 
South Africa, Revised Civic Education Manual, South African National Defence Force, 2004, Chapter 4, § 56(a).